Overview

• Best Buy lists the Oral-B iO Series 9 at $229.99, roughly 30% off and about $100 below recent pricing, with Walmart matching and Amazon higher.
• The iO Series 9 offers app-based AI brushing guidance, seven modes, a pressure sensor and a charging travel case, with the model first launched in August 2020.
• Reviewer consensus praises strong cleaning and coaching features yet flags the high price and a design that some find hard to keep clean, with mixed views on the smart tools’ usefulness.
• The Independent’s multi-week tests across five Oral-B models report that spending more does not equate to better plaque removal, as the iO line’s magnetic drive delivers similar cleaning across tiers.
• Buying guidance from The Independent names the iO2 best value at £41.99 and the iO9 best premium at £199.99 in the UK, noting the iO range uses proprietary brush heads that raise ongoing costs.